Inclosed switch



S. A. MEYERS AND C. PARKER. INCLOSED SWITCH.

APPLICAIION FILED NOV.20.191I. 1,382,210. Patented June 21,1921.

2 SHEHS-SHEEI Fla 2 27 V IZ' INVENTORS ATTORNEY s. A. MEYERS AND 0. PARKER.

iNCLOSED SWITCH.

APPLICATION FILED NOV. 20, [9|]. 1,382,210. PatentedJune 21, 1921.

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2 SHEETS-SHEET 2- [N VENTORS SA M s B 45 6 R: r k 6 I WOR NE Y I! '0 all whom it may concern:

UNITED STATES PATENT OFFICE.

SAMUEL MEYERS AND ClIAlLI-ES PARKER, OF SAN FRANCISCO, CALIFORNIA.

IINCLOSED SWITCH. v 1 1 4 meez'w l Be il; lillQWll Lhepmp SAMtm-L 1L MEYEITS, a subyzo t,of lh ssia, and CHARLES Pmugmz, a eifi izqpqf theiUnited Sh ites, i'esidiiig at Samfranoiscogih fighe county -of So1i Francis qo;- ;St a,to of Qalifomiu, have inventetla new: end gseful'l olosed Switch, of which the; follgwiirg 1|, gpecification in such flill,

and clear ge gpis gs x ill enablo Lhoise skilled AI! qbjecb,9f t lie.,inv entioii ,rifslid ifoizide ,no voltege nelease mechanism which will release the switch contz ets iflienflheyoltage on the ieircuit, .momeomrily drops to zero,

Wl1l1(?,,;al3j theesame -time, no; permitting the SjViiChrbQX icover gtogpei fey: enough to per mitthe .switehgppntact points to be ;interfared with by uiigutho ized persons Q -r= m h riob 'ecizj th vent on i l pr dl ee e syyitqhg. which 1; will have means glior. m meam ynsh -jsi e tie h 'fs s order (that, a; s fiieien tly heayy load iimy be carried momentarily tg-stmft .the mot orviwith outdangex ofijnjury to theiuses.

-TlQlihQlfgQbjQQt jofitheinvention'is to provide a lock which is capable of locking the switch i ;gi tclosed position yif desii'ed, locking it in ami itermediate position, and .elso

havingmeans wherebya padlock may be applied to thej switch;if desired 'to lock it againstfaccess o gchange ii -any of the-desirecl-p'ositions. v j E Other'objec-zts of the invention will appear i as the glescription pz ooeeds.

3 may be modifications thereof.

An embodiment of the invention is shown in't-he drawings in which the same reference3-nuinemlis applied to the same portion throughoutg but wvei'are aware that there -Figur'e'1 isvao'ro t elevntion-oft-he switch and iis inelosinpcnsing wilh the-front inc-losure open, .l .-Fig.-2':is a1 vertical sectional new ont-he Figlfi is a bottom plan view of-t-he upper portion ofgthe swipoh cming .showingthe mvoltageqelease mechanism, and

'1' 1Clg. 'f1: iS f,a septionz l view ofe portion of r 1 theswitchginclosing'casing on:the line 4 4,

F ig ,3, .in which the'oover isgshown cloged but 'atjihef noment rior-to the ez ipaos ion oL-thesptingfor lifting the short. qn'cuitmg device i; 2 z

The numeral 1 indicates the bofitomlor Specification of LCllCIjS Patcr t. Patented June, 2

Application filed November 20,1317. fielfiali H0. 202,935. g

ing the: pla'te 1 9 201819171121 PI'GVCIliS it iron! nun-in; in (HH direction while it peimits n ilun iiluvemuul, 12. [he 01)- posiie direction to allow the film)! to he opened. In order to prevvnt the ulu 2(3 from wearing the hlock 21 unduly finial block is provided \vithiniweni plain 32L.

In order to provide fol. the locking of the rloor in the several desired positionis, it has a handle Wtwhichhnndle has, n ring cured thbretogwh'ich' is so positioned as to enable it to register with a ringflfi fixedto the doqi thus enabling the switch dooifto beipntliockedin it: given position when desired. 'The handle 34 is ii-oi/ided within steinllgi, which sternhas two pin'siBS 391m t cndi z'ig 'filierethrough bent to. pass through Howw gi epins 38 and 39'ai'e' so bent as to? be a 1e to pass through said opening 1 10 in which there is n suitable coil 51 ',e2ipuhle of'liftinig the core 52 up whentliegcoil is oncrgizm nml.said cml receh es' i-nn vnt throughzthe wires 53 and 54;. Cormeqted with the core 52 is athreaded rofl '55, wliic h has a nut 56 with n wide flange, and a nut 57 with a slightly smnllci" fizm'go'n hicli is a claptecl to misc. the arm. 58 whenever the magnet 51 is energized. The arm 58 is pivoted to the casing back 1 at 59. and .when

, i'aisedcnuses the roller 48bo ho1d'ith e rod 14 from moving forward under the influence of the sp'ringsAfi, 4G.

The result of the fo egoing eonstmetion is 'tiiig-as soon as'the db'onis rzii sei' the annfZB' oonte'cts with the block' 21 which short cirouit's'ttie fuses. The switch'blaties 26',- Qf' are c'onhected witlrtheir respexztive contacts, the operator pushing on" the 'door w1th:respect to said open n'g'l The insB S' lliir i'zi'flnd pci'mi'tting'it to push the door 7 outwm'rlly until its pin 38 would strike the fian e (3.

T it is (lesiredfto ioek the switch in the closed position, the pin-391'sbleced'behind' the arm 12, as shown in fFigi-flf if ifi isi desired to loclc' the dooiwithj'the'switfeli in 1mopen position, the "pin 392'19 laced WiiIhE-I'P so i In brder'to prevent the md'5'5f1 om' bc coming dislodged with l-espeot'to the posi tion it':sl1ould occupy with the en rv 58',- a. loop of wife 60 is connected to said aim an d sin-ionndsthe i'od 55:

Hnving" :th us described" our' 'i'inventiom, whatno: claim I15 new and "desire t'o' seoui'c h'y Letteis Potent ofi"the-Un'rtel States, is as follows; express reservation being: inside of permissiblefinodifitiatidns; f

2'. An"in1ose(l swit (;h oonip 'isin s'witch (-ontnct points, an inclosingjofising t erefor; fuses in thecasing, means t'o' br rlge' across each of said fuses momentaiilv during the closing of the switch; u-front hinged tosaid casing carrying knife blades for-folosingihe contacts and means (:ztrried by? said' liin'ged front, for opei'a ting'th'e fuso Bridging n lech 11 zinism.

An incloscd switch comprising an in: closing casing, switch points-therein',"iuses in ciic-nit' with s'nicl'switch points means=to the (losing ofthe switch, a-fi'onflhinged to the casing, knife hlacles*earried byjsaid front for connecting the switch points and :1 spring operated arm carried by the .front mlnpted to operate the bridging'meohanism 12g switch closed or the switeh opened as de sired;

5. An inelosed switch emnprising an in leeking the pusher rod in the rem-mater! n) closim easing, switch points therein, a :sition so long; 11: the (ill'ullii, is; mused and m hingefi front, for the casing, knife blades energized. carried by said hinged front and adapted to T n testimony whereof we have hereuntu i close the contacts of the switch points with set our hands this 14th day of November in the easing, a spring operated pusher red A. D. 191.7. adapted to hold the hinged front normally SAMUEL A. MEYERS. open, and eletro, mechanical means for CI'IARI'JES PA RTCER. 

